Homonym: -15 (Temperature)
The number "-15" is a negative integer that represents a value fifteen units below zero. In mathematics, negative numbers are used to indicate values less than zero, often seen in contexts like temperature, debt, or elevation below sea level.
In terms of temperature, for example, -15 degrees can refer to a very cold day, often associated with winter weather in regions that experience freezing temperatures. This temperature can affect daily activities, requiring appropriate clothing and precautions to stay warm and safe.